Question

1+2=21
2+3=32
3+4=43
4+5=?​

Answer 1

Answer:

One solution

1 + 2 = 12 + 9 = 21

2 + 3 = 23 + 13 = 36

3 + 4 = 34 + 9 = 43

4 + 5 = 45 + 13 = 58

a + b = ab + 9 / 13 alternatively

Another way

1 + 2 = 21 + 0 = 21

2 + 3 = 32 + 4 = 36

3 + 4 = 43 + 0 = 43

4 + 5 = 54 + 4 = 58

a + b = ba + 0 /4 alternatively

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Missing number 3, 10, 35, _, 217,

Answer 2

Answer:

54 Answer

because 5 is replace on 4.

Step-by-step explanation:

hope this answer is helpful for you.